delete_ability

THE RISK

Critical Risk

Why delete_ability needs a policy

This tool irreversibly removes an ability from the game state and cannot be undone through normal game operations. However, the blast radius is limited to a single game session's data structures (RPG abilities rather than persistent external data), justifying 'medium' severity rather than 'high'.

From the tool's definition Tool name: 'delete_ability'. Description: 'Delete an ability'. The verb 'delete' indicates irreversible removal of game state data (an ability object).

Documented attack patterns abuse exactly the kind of access delete_ability gives an agent:

POLICY

How to control delete_ability

PolicyLayer is an MCP gateway — it sits between your AI agents and DMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_ability:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_ability"
  ]
}

delete_ability disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register DMCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More DMCP tools

Destructive cancel_event Cancel a scheduled event Destructive clear_pause_state Clear the saved pause state for a game. Use after successfully resuming to start fresh. Destructive clear_status_effects Remove all status effects from a character (or filter by type/name) Destructive delete_audio Delete a stored audio file (removes file and database record) Destructive delete_character Delete a character permanently. This is IRREVERSIBLE and will remove the character and all Destructive delete_external_update Delete an external update entirely. Destructive delete_faction Delete a faction Destructive delete_game Delete a game and all its data. This is IRREVERSIBLE and removes all characters, locations

All 204 DMCP tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in DMCP → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_ability

What does the delete_ability tool do? +

Delete an ability. It is categorised as a Destructive tool in the DMCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_ability? +

Register the D MCP server in PolicyLayer and add a rule for delete_ability: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches DMCP. Nothing to install.

What risk level is delete_ability? +

delete_ability is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_ability? +

Yes. Add a rate_limit block to the delete_ability rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block delete_ability completely? +

Set action: deny in the PolicyLayer policy for delete_ability. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides delete_ability? +

delete_ability is provided by the D MCP server (shawnrushefsky/dmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every DMCP tool call.

Start from DMCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →